Small caps don't work for part numbering

[Former user]

What steps will reproduce the problem?
1. Compile the file classicthesis-book.tex from the Examples directory.

What is the expected output? What do you see instead?
I'd expect the part numbering in the TOC to be in small caps, instead it is only lower
case.

What version of the product are you using? On what operating system?
Latest CTAN with TeX Live 2013

Please provide any additional information below.
The bug can be fixed by adding

\makeatletter
\def\ttl@tocpart{%
  \def\ttl@a{\protect\numberline{\thepart}\@gobble{}}}
\makeatother
\setlength{\cftpartnumwidth}{1.5em}

to the preamble. It arises due to a strange interference between titlesec and tocloft.
There is a discussion on TeX.SX about it: http://tex.stackexchange.com/questions/120708/problem-with-classicthesis-and-small-caps

Original issue reported on code.google.com by henrimenke on 2013-06-23 19:59:41

[André Miede]

Thanks, will be fixed in v4.2.

Original issue reported on code.google.com by amiede on 2013-10-03 13:31:04

[André Miede]

Fixed in version 4.2 (to be released soon).